Television receiver with control of writing and reading of video

Details Television receiver with control of writing and reading of video Television receiver with control of writing and reading of video

1990-03-07

1993-01-19

Kostak, Victor R.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358148, H04N 504

Patent

active

051811162

ABSTRACT:
In a television receiver in which scanning for an incoming video signal is performed at a frequency n times as high as the input horizontal synchronous frequency by suitably controlling writing and reading on its video memory, the signals for writing and reading on the video memory unit are generated by a horizontal synchronization/deflection circuit. The horizontal synchronization/deflection circuit is arranged by having a clock generation/synchronous deflection circuit for generating reference signals to control the writing and reading on the video memory unit provided with a phase comparator such that a horizontal drive signal to drive a horizontal deflection circuit and a flyback pulse are brought in phase.

REFERENCES:
patent: 4134082 (1979-01-01), Fernster
patent: 4591910 (1986-05-01), Lai et al.
patent: 4769705 (1988-09-01), Lendaro
patent: 4870490 (1989-09-01), Sekiya et al.
patent: 5043813 (1991-08-01), Christopher

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